My world just Turned Upside Down.

It’s 1.30AM and I am sitting in hospital next to my little 3 1/2 yo boy who has just been diagnosed with type1 diabetes. His bloods are slowly normalising but he was in a bad state when he arrived. We have no history of this on either side so I really have no idea what’s in store I just know this changes everything. I am incredibly sad for him and so scared for his (our) future.
Looking for any tips on how we are supposed to start this journey with someone so young, it hurts me to put him through this when he doesn’t understand what is happening ...